import java.util.Scanner;

public class Dcv {
	public static void main (String[] args) { 
		Scanner sc=new Scanner(System.in);
		  System.out.println("请输入年龄");
		  int nl=sc.nextInt();
	if(nl>=0&&nl<=1){ 
	      System.out.println("婴儿"); 
	} 
	else if(nl>1&&nl<=6){ //否则 
	      System.out.println("儿童"); 
	   }
	else if(nl>6&&nl<=12){ //否则 
	      System.out.println("少年"); 
	   }
	else if(nl>12&&nl<=30){ //否则 
	      System.out.println("青年"); 
	   }
	else if(nl>30&&nl<=55){ //否则 
	      System.out.println("中年"); 
	   }
	else{ //否则 
	      System.out.println("老年"); 
	   }
	}
}
